pass array to the puppet resource defined -

i test if multiple packages exist in environment or not, based on test generate final catalog.

if !defined( package[ 'apache2' ] ) {     package { 'apache2':         ensure  => installed,     } } if !defined( package[ 'libapache2-svn' ] ) {     package { 'libapache2-svn':         ensure  => installed,     } } 

in future control in following way:

package { ensure => "installed" } $packagelist = [ 'apache2', 'libapache2-svn' ]  if !defined( package[ $packagelist ] ) {     package { $packagelist: } }